In the latter half of the twentieth century, legions of industrial pioneers came to northwestern British Columbia with grand plans for mines, dams, and energy-development schemes. Yet many of their projects failed to materialize or were abandoned midstream. Unbuilt Environments reveals that these lapsed resource projects had lasting effects on the natural and human environment. Drawing on a range of case studies to analyze the social and environmental impacts of unfinished projects, Jonathan Peyton considers development failure a productive concept for northwestern Canada. He looks at a closed asbestos mine, an abandoned rail grade, an imagined series of hydroelectric installations, a failed LNG export facility, and a transmission line – and finds that these unrealized developments continue to shape contemporary resource conflicts.